public class Test {

    public static boolean cmp(int a) {

    }
    public static void main(String[] args) {
        int n = 16;
        if (cmp(a)){
            System.out.println("yes");
        } else {
            System.out.println("no");
        }
    }


    public static int gcd(int a, int b) {
        return b != 0 ? gcd(b, a % b) : a;
    }
    public static void main1(String[] args) {
        int a = 30;
        int b = 16;
        System.out.println(gcd(a,b));
    }
}
